Suzuki Gsf400 (1991)
1991 Suzuki Gsf400
CarHunch analysed 147 real MOT records for the 1991 Suzuki Gsf400. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 1991 Suzuki GSF400 passes its MOT on the first attempt 77.9% of the time, slightly below the UK average of 80%, which suggests modest reliability concerns—though the 11.6% that have ever had a dangerous defect is not unusually high. Diesel versus petrol breakdowns aren't relevant here since this is a motorcycle.
At nearly 32,000 miles on average, these bikes have been ridden moderately over their three decades; the 1.18 failures per vehicle and 3.4 advisories per vehicle indicate typical wear rather than systemic design flaws. When buying one, budget for minor fixes before MOT and have a pre-purchase inspection focus on brake condition and suspension, as these are the areas where older bikes most often stumble.
What to check before buying a 1991 Suzuki Gsf400
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Suzuki Gsf400
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 1991 Suzuki Gsf400 vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 1991 Suzuki Gsf400 vehicles fall between 20,776 and 39,846 miles.
1991 Suzuki Gsf400 — Still on the Road
16 vehicles still getting MOTs in 2022 — 67% of the peak remain.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2022.
MOT History Averages
Most Common MOT Issues — 1991 Suzuki Gsf400
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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29.8%
Front Tyre worn close to the legal limit
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21.1%
Rear Tyre worn close to the legal limit
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18.9%
Rear reflector on motorcycle missing
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16.2%
Exhaust noisy
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15.4%
Drive chain slightly loose
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15.4%
Rear Brake disc(s) slightly scored
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14.5%
Front shock absorber has light misting of stanchion
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12.3%
Front Roller brake test indicates slight fluctuation of brake effort
Data covers a 3-year window centred on 1991. Counts include advisories and failures.
Found a specific Suzuki Gsf400?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.
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